Food plastic bags: American scientists made from milk food packaging materials

Discarded food packaging bags can be seen everywhere, on the environment caused great distress. The U. S. department of agriculture ( 美国农业部) East research center in local time, 21, said his research team have developed a kind of milk proteins and other Casein & throughout; Made of edible and biodegradable packaging materials, is expected to solve the problem of environmental pollution by food packaging bags. Research team on the basis of casein with lemon and lime peel the pectin components, made of transparent membrane. Pectin is make fruit sticky substance. Manufactured goods looks like a plastic wrap, but difficult to spin, than the general packaging materials of low density polyethylene ( LDPE） Oxygen ability strong 500 times. Oxygen can decompose food, make food containing fat more rancidity. Made from starch biodegradable packaging materials are now commonly used, but due to material in the air is serious, is not suitable for food packaging. Team Texas in the United States has established the specialized manufacture the packaging materials company, is expected to achieve formal products available in three years. Research at the American chemical society's 252th annual meeting, ACS） On release, the institute on August 21 to 25 in Pennsylvania, is the largest scientific society. South Korea xijiang Li Dehuan (professor of chemistry at the university of Transliteration) Said: & other; Perfluorinated compounds ( PFCs were food packaging materials) Were once seen as a safe packaging materials, has now been banned, so food packaging made from casein and pectic material should come in handy. ” At the same time, he also expressed concern: & other; Worth considering is that there are more than 2 billion people around the world are suffering from hunger, made into paper consumption of milk casein extracted is contrary to ethics. ”
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